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Allowance for Credit Losses - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022
Loans and Leases Receivable Disclosure [Line Items] |  |
Unpaid principal balance |  | $ 7,370
Purchased loans acquired with deteriorated credit quality |  | 2,409
Purchased Credit Impaired Loans |  | 2,409
Remaining unamortized accretable discount |  | 0
Nonaccrual with a related Allowance for Credit Loss | $ 733 | 1,918
Loans receivable | 2,241,359 | 927,615
Mortgage loans on real estate | 1,751,423 |
Interest income recognized on nonaccrual loans | $ 124 |
Federal Home Loan Bank (FHLB) [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Borrowings secured by loans pledged to FHLB |  | 0
Real Estate Commercial Loans And Construction And Development [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Loans receivable |  | 540,914
Additional loans and leases receivable carrying amount |  | $ 139,555
Loan portfolio percentage |  | 58.30%
Purchased Credit Impaired Loans [Member] |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Unpaid principal balance |  | $ 6,627
Purchased loans acquired with deteriorated credit quality |  | 2,409
Estimated fair value of loans |  | 5,384
Contractual principal and interest at Merger |  | 8,509
Preliminary estimate of expected cash flows |  | 5,793
Established credit risk related non-accretable discount |  | 2,716
Accretable discount |  | 409
Purchased Credit Impaired Loans |  | $ 2,409

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